<script type="text/javascript" src="dwr/engine.js"></script>
<script type="text/javascript" src="dwr/util.js"></script>
<script type="text/javascript" src="dwr/interface/Msgdeal.js"></script> javascript語言：
<script type="text/javascript">
function Test1(){
var _data = "";
dwr.engine.setAsync(false);//設置同步
Msgdeal.getMsg(1,function(data){_data = data;});//調用java中MsgDeal類的消息處理方法
dwr.engine.setAsync(true); //設置到初始狀態
document.getElementById("serverResponse").value= _data; //設置獲取的值
if(_data > 0){//有新的消息
//是消息圖表閃動
}else{
//沒有新消息
}
}
function init(){
Test1();//先加載一次
var time = 5000*10; //5*10秒
window.setInterval('Test1()',time);
}
</script>
</head>
<body onload="init()">
新消息<input type="text" id="serverResponse" />
</body>dwr.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE
dwr
PUBLIC
"-//GetAhead Limited//DTD Direct Web Remoting 3.0//EN"
"http://getahead.org/dwr/dwr30.dtd">
<dwr>
<allow>
<create creator="new" javascript="Msgdeal">
<param name="class" value="com.msg.MsgDeal"/>
</create>
</allow>
</dwr>web.xml裏面增加dwr支持：
<!-- dwr configuration -->
<servlet>
<display-name>DWR Servlet</display-name>
<servlet-name>dwr-invoker</servlet-name>
<servlet-class>org.directwebremoting.servlet.DwrServlet</servlet-class>
<init-param>
<param-name>debug</param-name>
<param-value>true</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>dwr-invoker</servlet-name>
<url-pattern>/dwr/*</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>MsgController</servlet-name>
<servlet-class>com.msg.MsgController</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>MsgController</servlet-name>
<url-pattern>/msgcontroller</url-pattern>
</servlet-mapping>